diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2c957a75a..0e9bd3d8e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 ## 0.9.6 (unreleased)
 
-
+  - Fix strange issue with inconsistent childprocess reads on JRuby. [GH-711]
 
 ## 0.9.5 (February 5, 2012)
 
diff --git a/lib/vagrant/util/subprocess.rb b/lib/vagrant/util/subprocess.rb
index 8778133ed..56eee94d0 100644
--- a/lib/vagrant/util/subprocess.rb
+++ b/lib/vagrant/util/subprocess.rb
@@ -116,10 +116,6 @@ module Vagrant
         rescue ChildProcess::TimeoutError
           raise TimeoutExceeded, process.pid
         end
-        
-        # Close the writer pipes, since we're just reading
-        stdout_writer.close
-        stderr_writer.close
 
         @logger.debug("Exit status: #{process.exit_code}")
 
@@ -140,6 +136,12 @@ module Vagrant
           yield io_name, extra_data if block_given?
         end
 
+        # Close the writer pipes. Note that we do this so late (after the process
+        # has quit) to work around an issue with childprocess and JRuby. It is
+        # bizarre but it works.
+        stdout_writer.close
+        stderr_writer.close
+
         # Return an exit status container
         return Result.new(process.exit_code, io_data[:stdout], io_data[:stderr])
       end